作者:A. S. Sofian、C. Kuan Lee
DOI:10.1081/car-120021700
日期:2003.1.6
series of 1,4,6‐trideoxy‐1,4,6‐trihalo‐β‐d‐hexulofuranosyl 4‐deoxy‐4‐halo‐α‐d‐hexopyranosides is described. The 4‐chloro‐, 4‐bromo‐ and 4‐iodo‐4‐deoxy‐β‐d‐fructofuranosyl analogues were synthesized from a 3′,4′‐lyxo‐epoxide using the respective alkali metal halides. The corresponding 4‐halodeoxytagatofuranosyl analogues, on the other hand, were obtained by direct halide displacement of the 4′‐O‐trif
描述了一系列1,4,6-三甲氧基-1,4,6-三卤代-β- d-己呋喃呋喃糖基4-脱氧-4-卤代-α- d-己基吡喃糖苷的合成。的4-氯,4-溴和4-碘-4-脱氧β- d -fructofuranosyl类似物是从一个3',4'-合成L-来苏-epoxide使用相应的碱金属卤化物。另一方面,相应的4-卤代脱氧呋喃呋喃糖基类似物是通过直接卤化物置换4,-O-三氟甲磺酰基衍生物而得,该衍生物是通过1,6-二-O-三苯甲基-β- d-果糖呋喃糖基的区域选择性磺酰化而衍生的。6- ø三苯甲基α- d吡喃葡萄糖苷通过其亚锡缩醛。这些四卤代脱氧化合物的甜味强度强烈表明,C-4和C-4'处卤素取代基的大小和构型对于提高甜度至关重要。